GOL 105 TIPS SET ANSWERS AND QUESTIONS SET
A+
✔✔Which of the following is an accurate characterization of minerals identified as the
dark silicates?
a. The dark silicates contain iron and magnesium, giving them their characteristic dark
color.
b. The term dark silicate indicates a formation process that occurs beneath the Earth's
crust in the absence of sunlight.
c. The dark silicates do not have the ability to transmit light and are classified as dark or
opaque minerals.
d. The dark silicates contain iron and lithium, giving them their characteristic dark color.
- ✔✔a. The dark silicates contain iron and magnesium, giving them their characteristic
dark color.
✔✔Which of the following is included in a geologist's definition of mineral?
a. Minerals are sometimes composed of different rock types.
b. A mineral is a naturally occurring solid.
c. Minerals are very hard solid substances.
d. Minerals are chemically similar solids with different crystalline structures. - ✔✔b. A
mineral is a naturally occurring solid.
✔✔Plagioclase feldspars contain significant, variable percentages of which two
elements?
a. calcium and potassium
b. iron and magnesium
c. sodium and potassium
d. calcium and sodium - ✔✔d. calcium and sodium
✔✔In the proper order, which one of the following lists of minerals represents the three
mineral classes silicates, halides, and oxides?
, a. hematite, pyrite, and olivine
b. gibbsite, cinnabar, and dolomite
c. garnet, sylvite, and ice
d. quartz, apatite, and halite - ✔✔c. garnet, sylvite, and ice
✔✔Match the following key ions or elements with the correct major nonsilicate mineral
classes. (oxides, sulfates, sulfides, halides, carbonates, hydroxides)
a. Cl-, Br-, F-
b. O2-
c. S2-
d. SO42-
e. (OH)-
f. (CO3)2- - ✔✔a. halides
b. oxides
c. sulfides
d. sulfates
e. hydroxides
f. carbonates
✔✔Match the mineral with the chemical composition and commercial use. (galena,
calcite, magnetite, gypsum)
a. sulfide mineral, ore mineral of lead
b. sulfate mineral, used in plaster and plasterboard
c. oxide mineral, ore of iron
d. carbonate mineral in limestone, used in the manufacture of cement - ✔✔a. Galena
b. gypsum
c. magnetite
d. calcite
✔✔Which of the following is not part of the definition of a mineral?
a. Naturally occurring
b. organic
c. orderly crystalline structure
d. characteristic chemical composition - ✔✔b. organic
✔✔Which of the following is a rock composed of non mineral matter?
a. granite
b. limestone
c. coal
d. basalt - ✔✔c. coal
A+
✔✔Which of the following is an accurate characterization of minerals identified as the
dark silicates?
a. The dark silicates contain iron and magnesium, giving them their characteristic dark
color.
b. The term dark silicate indicates a formation process that occurs beneath the Earth's
crust in the absence of sunlight.
c. The dark silicates do not have the ability to transmit light and are classified as dark or
opaque minerals.
d. The dark silicates contain iron and lithium, giving them their characteristic dark color.
- ✔✔a. The dark silicates contain iron and magnesium, giving them their characteristic
dark color.
✔✔Which of the following is included in a geologist's definition of mineral?
a. Minerals are sometimes composed of different rock types.
b. A mineral is a naturally occurring solid.
c. Minerals are very hard solid substances.
d. Minerals are chemically similar solids with different crystalline structures. - ✔✔b. A
mineral is a naturally occurring solid.
✔✔Plagioclase feldspars contain significant, variable percentages of which two
elements?
a. calcium and potassium
b. iron and magnesium
c. sodium and potassium
d. calcium and sodium - ✔✔d. calcium and sodium
✔✔In the proper order, which one of the following lists of minerals represents the three
mineral classes silicates, halides, and oxides?
, a. hematite, pyrite, and olivine
b. gibbsite, cinnabar, and dolomite
c. garnet, sylvite, and ice
d. quartz, apatite, and halite - ✔✔c. garnet, sylvite, and ice
✔✔Match the following key ions or elements with the correct major nonsilicate mineral
classes. (oxides, sulfates, sulfides, halides, carbonates, hydroxides)
a. Cl-, Br-, F-
b. O2-
c. S2-
d. SO42-
e. (OH)-
f. (CO3)2- - ✔✔a. halides
b. oxides
c. sulfides
d. sulfates
e. hydroxides
f. carbonates
✔✔Match the mineral with the chemical composition and commercial use. (galena,
calcite, magnetite, gypsum)
a. sulfide mineral, ore mineral of lead
b. sulfate mineral, used in plaster and plasterboard
c. oxide mineral, ore of iron
d. carbonate mineral in limestone, used in the manufacture of cement - ✔✔a. Galena
b. gypsum
c. magnetite
d. calcite
✔✔Which of the following is not part of the definition of a mineral?
a. Naturally occurring
b. organic
c. orderly crystalline structure
d. characteristic chemical composition - ✔✔b. organic
✔✔Which of the following is a rock composed of non mineral matter?
a. granite
b. limestone
c. coal
d. basalt - ✔✔c. coal
